Based on the mathematical model of flyback switching DC-DC converter in the continuous current mode and the simulation model under heavy loads, this paper presents a study of the steady-state power loss in the output diode, including the loss calculation models under three operational modes (voltage control, under-voltage, and overcurrent modes), the relations of the diode loss versus the input and output voltages, and a comparison of the losses under different modes. By the heavy load simulation model, the effects of time delay on the diode loss are also investigated. Finally, the proposed models are applied to calculate the power losses of output diode of an existing flyback switching DC-DC converter.

en_US

dc.publisher

IEEE

en_US

dc.relation.ispartof

Proceedings of International Power Electronics and Motion Control Conference

en_US

dc.relation.ispartof

International Power Electronics and Motion Control Conference

en_US

dc.relation.isbasedon

10.1109/IPEMC.2006.4778004

en_US

dc.title

Calculation of Power Loss in Output Diode of a Flyback Switching DC-DC Converter

en_US

dc.type

Conference Proceeding

utslib.location

USA

en_US

utslib.location.activity

Shanghai, China

en_US

utslib.for

0902 Automotive Engineering

en_US

dc.location.activity

Shanghai, China

en_US

dc.location.activity

Brisbane, Australia

pubs.embargo.period

Not known

en_US

pubs.organisational-group

/University of Technology Sydney

pubs.organisational-group

/University of Technology Sydney/Faculty of Engineering and Information Technology

pubs.organisational-group

/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering

pubs.organisational-group

/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering

Based on the mathematical model of flyback switching DC-DC converter in the continuous current mode and the simulation model under heavy loads, this paper presents a study of the steady-state power loss in the output diode, including the loss calculation models under three operational modes (voltage control, under-voltage, and overcurrent modes), the relations of the diode loss versus the input and output voltages, and a comparison of the losses under different modes. By the heavy load simulation model, the effects of time delay on the diode loss are also investigated. Finally, the proposed models are applied to calculate the power losses of output diode of an existing flyback switching DC-DC converter.